Pandas Profiling Report

Dataset statistics

Number of variables	23
Number of observations	19077
Missing cells	0
Missing cells (%)	0.0%
Duplicate rows	0
Duplicate rows (%)	0.0%
Total size in memory	3.2 MiB
Average record size in memory	177.0 B

Variable types

Numeric	19
Categorical	3
Boolean	1

Alerts

`dataplus` is highly overall correlated with `questionnaire`	High correlation
`dualpane` is highly overall correlated with `oucontent` and 1 other fields	High correlation
`folder` is highly overall correlated with `page`	High correlation
`forumng` is highly overall correlated with `homepage` and 3 other fields	High correlation
`homepage` is highly overall correlated with `forumng` and 5 other fields	High correlation
`oucontent` is highly overall correlated with `dualpane` and 6 other fields	High correlation
`ouwiki` is highly overall correlated with `homepage` and 3 other fields	High correlation
`page` is highly overall correlated with `folder` and 4 other fields	High correlation
`questionnaire` is highly overall correlated with `dataplus` and 3 other fields	High correlation
`quiz` is highly overall correlated with `oucontent` and 1 other fields	High correlation
`resource` is highly overall correlated with `forumng` and 3 other fields	High correlation
`subpage` is highly overall correlated with `forumng` and 6 other fields	High correlation
`url` is highly overall correlated with `forumng` and 4 other fields	High correlation
`repeatactivity` is highly imbalanced (99.9%)	Imbalance
`sharedsubpage` is highly imbalanced (97.8%)	Imbalance
`glossary` is highly skewed (γ1 = 26.7980793)	Skewed
`resource` is highly skewed (γ1 = 27.94158756)	Skewed
`dataplus` has 16897 (88.6%) zeros	Zeros
`dualpane` has 16016 (84.0%) zeros	Zeros
`externalquiz` has 15459 (81.0%) zeros	Zeros
`folder` has 17309 (90.7%) zeros	Zeros
`forumng` has 1303 (6.8%) zeros	Zeros
`glossary` has 14467 (75.8%) zeros	Zeros
`htmlactivity` has 17850 (93.6%) zeros	Zeros
`oucollaborate` has 10954 (57.4%) zeros	Zeros
`oucontent` has 1036 (5.4%) zeros	Zeros
`ouelluminate` has 17047 (89.4%) zeros	Zeros
`ouwiki` has 10554 (55.3%) zeros	Zeros
`page` has 12578 (65.9%) zeros	Zeros
`questionnaire` has 15593 (81.7%) zeros	Zeros
`quiz` has 4833 (25.3%) zeros	Zeros
`resource` has 510 (2.7%) zeros	Zeros
`subpage` has 294 (1.5%) zeros	Zeros
`url` has 2836 (14.9%) zeros	Zeros

Reproduction

Analysis started	2023-02-20 18:33:26.128424
Analysis finished	2023-02-20 18:34:01.520704
Duration	35.39 seconds
Software version	ydata-profiling vv4.0.0
Download configuration	config.json

ID_Student
Real number (ℝ)

Distinct	18107
Distinct (%)	94.9%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	697585.39

Minimum	6516
Maximum	2698577
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	6516
5-th percentile	185421.2
Q1	503491
median	586762
Q3	634928
95-th percentile	2337377.8
Maximum	2698577
Range	2692061
Interquartile range (IQR)	131437

Descriptive statistics

Standard deviation	544359.67
Coefficient of variation (CV)	0.78034844
Kurtosis	5.4521267
Mean	697585.39
Median Absolute Deviation (MAD)	62466
Skewness	2.4970832
Sum	1.3307836 × 10¹⁰
Variance	2.9632745 × 10¹¹
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
561208	3	< 0.1%
556450	3	< 0.1%
599297	3	< 0.1%
554459	3	< 0.1%
610537	3	< 0.1%
548926	3	< 0.1%
608669	3	< 0.1%
630479	2	< 0.1%
674808	2	< 0.1%
583993	2	< 0.1%
Other values (18097)	19050	99.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
6516	1	< 0.1%
11391	1	< 0.1%
23629	1	< 0.1%
23698	1	< 0.1%
24186	1	< 0.1%
24213	1	< 0.1%
24734	1	< 0.1%
25107	1	< 0.1%
25150	1	< 0.1%
26023	1	< 0.1%

Value	Count	Frequency (%)
2698577	1	< 0.1%
2698535	1	< 0.1%
2698257	1	< 0.1%
2698251	1	< 0.1%
2698125	1	< 0.1%
2697921	2	< 0.1%
2697885	1	< 0.1%
2697773	1	< 0.1%
2697630	1	< 0.1%
2697181	1	< 0.1%

course_year_month
Categorical

Distinct	22
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Memory size	149.2 KiB

FFF 2013_October	1414
BBB 2013_October	1371
BBB 2014_October	1339
FFF 2014_October	1247
DDD 2013_October	1147
Other values (17)	12559

Length

Max length	17
Median length	16
Mean length	16.380458
Min length	16

Characters and Unicode

Total characters	312490
Distinct characters	24
Distinct categories	5 ?
Distinct scripts	2 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	GGG 2013_October
2nd row	EEE 2013_October
3rd row	GGG 2013_October
4th row	FFF 2014_October
5th row	BBB 2014_October

Common Values

Value	Count	Frequency (%)
FFF 2013_October	1414	7.4%
BBB 2013_October	1371	7.2%
BBB 2014_October	1339	7.0%
FFF 2014_October	1247	6.5%
DDD 2013_October	1147	6.0%
CCC 2014_October	1110	5.8%
FFF 2013_February	1076	5.6%
BBB 2013_February	1062	5.6%
DDD 2014_October	1041	5.5%
BBB 2014_February	928	4.9%
Other values (12)	7342	38.5%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
2014_october	6206	16.3%
2013_october	5613	14.7%
bbb	4700	12.3%
fff	4658	12.2%
2014_february	4317	11.3%
ddd	3603	9.4%
2013_february	2941	7.7%
ccc	1945	5.1%
eee	1827	4.8%
ggg	1766	4.6%

Most occurring characters

Value	Count	Frequency (%)
r	26335	8.4%
F	21232	6.8%
_	19077	6.1%
	19077	6.1%
b	19077	6.1%
e	19077	6.1%
1	19077	6.1%
0	19077	6.1%
2	19077	6.1%
B	14100	4.5%
Other values (14)	117284	37.5%

Most occurring categories

Value	Count	Frequency (%)
Lowercase Letter	121720	39.0%
Uppercase Letter	76308	24.4%
Decimal Number	76308	24.4%
Connector Punctuation	19077	6.1%
Space Separator	19077	6.1%

Most frequent character per category

Lowercase Letter

Value	Count	Frequency (%)
r	26335	21.6%
b	19077	15.7%
e	19077	15.7%
c	11819	9.7%
t	11819	9.7%
o	11819	9.7%
u	7258	6.0%
a	7258	6.0%
y	7258	6.0%

Uppercase Letter

Value	Count	Frequency (%)
F	21232	27.8%
B	14100	18.5%
O	11819	15.5%
D	10809	14.2%
C	5835	7.6%
E	5481	7.2%
G	5298	6.9%
A	1734	2.3%

Decimal Number

Value	Count	Frequency (%)
1	19077	25.0%
0	19077	25.0%
2	19077	25.0%
4	10523	13.8%
3	8554	11.2%

Connector Punctuation

Value	Count	Frequency (%)
_	19077	100.0%

Space Separator

Value	Count	Frequency (%)
	19077	100.0%

Most occurring scripts

Value	Count	Frequency (%)
Latin	198028	63.4%
Common	114462	36.6%

Most frequent character per script

Latin

Value	Count	Frequency (%)
r	26335	13.3%
F	21232	10.7%
b	19077	9.6%
e	19077	9.6%
B	14100	7.1%
c	11819	6.0%
t	11819	6.0%
o	11819	6.0%
O	11819	6.0%
D	10809	5.5%
Other values (7)	40122	20.3%

Common

Value	Count	Frequency (%)
_	19077	16.7%
	19077	16.7%
1	19077	16.7%
0	19077	16.7%
2	19077	16.7%
4	10523	9.2%
3	8554	7.5%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	312490	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
r	26335	8.4%
F	21232	6.8%
_	19077	6.1%
	19077	6.1%
b	19077	6.1%
e	19077	6.1%
1	19077	6.1%
0	19077	6.1%
2	19077	6.1%
B	14100	4.5%
Other values (14)	117284	37.5%

pass
Boolean

Distinct	2
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	18.8 KiB

True	12358
False	6719

Common Values (Table)
Common Values (Plot)

Value	Count	Frequency (%)
True	12358	64.8%
False	6719	35.2%

dataplus
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	85
Distinct (%)	0.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	1.8158515

Minimum	0
Maximum	143
Zeros	16897
Zeros (%)	88.6%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	14
Maximum	143
Range	143
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	7.2333209
Coefficient of variation (CV)	3.9834319
Kurtosis	46.243716
Mean	1.8158515
Median Absolute Deviation (MAD)	0
Skewness	5.8645031
Sum	34641
Variance	52.320931
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	16897	88.6%
1	225	1.2%
3	121	0.6%
8	101	0.5%
4	99	0.5%
6	89	0.5%
5	88	0.5%
7	88	0.5%
2	84	0.4%
10	80	0.4%
Other values (75)	1205	6.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	16897	88.6%
1	225	1.2%
2	84	0.4%
3	121	0.6%
4	99	0.5%
5	88	0.5%
6	89	0.5%
7	88	0.5%
8	101	0.5%
9	74	0.4%

Value	Count	Frequency (%)
143	1	< 0.1%
101	1	< 0.1%
100	2	< 0.1%
99	1	< 0.1%
97	1	< 0.1%
93	1	< 0.1%
91	1	< 0.1%
86	1	< 0.1%
80	1	< 0.1%
78	2	< 0.1%

dualpane
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	40
Distinct (%)	0.2%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	0.89877863

Minimum	0
Maximum	69
Zeros	16016
Zeros (%)	84.0%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	6
Maximum	69
Range	69
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	3.1190432
Coefficient of variation (CV)	3.470313
Kurtosis	58.265455
Mean	0.89877863
Median Absolute Deviation (MAD)	0
Skewness	6.0393819
Sum	17146
Variance	9.7284306
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=40)

Value	Count	Frequency (%)
0	16016	84.0%
1	673	3.5%
2	482	2.5%
3	358	1.9%
4	268	1.4%
5	205	1.1%
6	176	0.9%
7	134	0.7%
8	130	0.7%
9	104	0.5%
Other values (30)	531	2.8%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	16016	84.0%
1	673	3.5%
2	482	2.5%
3	358	1.9%
4	268	1.4%
5	205	1.1%
6	176	0.9%
7	134	0.7%
8	130	0.7%
9	104	0.5%

Value	Count	Frequency (%)
69	2	< 0.1%
49	1	< 0.1%
46	1	< 0.1%
45	1	< 0.1%
43	1	< 0.1%
40	1	< 0.1%
39	2	< 0.1%
36	2	< 0.1%
34	1	< 0.1%
33	1	< 0.1%

externalquiz
Real number (ℝ)

Distinct	100
Distinct (%)	0.5%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	2.9275043

Minimum	0
Maximum	340
Zeros	15459
Zeros (%)	81.0%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	19
Maximum	340
Range	340
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	10.097041
Coefficient of variation (CV)	3.4490269
Kurtosis	149.53788
Mean	2.9275043
Median Absolute Deviation (MAD)	0
Skewness	8.2111926
Sum	55848
Variance	101.95024
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	15459	81.0%
1	320	1.7%
4	240	1.3%
2	240	1.3%
3	236	1.2%
5	174	0.9%
6	163	0.9%
7	145	0.8%
9	141	0.7%
8	138	0.7%
Other values (90)	1821	9.5%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	15459	81.0%
1	320	1.7%
2	240	1.3%
3	236	1.2%
4	240	1.3%
5	174	0.9%
6	163	0.9%
7	145	0.8%
8	138	0.7%
9	141	0.7%

Value	Count	Frequency (%)
340	1	< 0.1%
316	1	< 0.1%
169	2	< 0.1%
164	2	< 0.1%
129	1	< 0.1%
119	1	< 0.1%
114	1	< 0.1%
113	1	< 0.1%
111	1	< 0.1%
109	1	< 0.1%

folder
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	14
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	0.26613199

Minimum	0
Maximum	13
Zeros	17309
Zeros (%)	90.7%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	2
Maximum	13
Range	13
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	0.98056838
Coefficient of variation (CV)	3.684519
Kurtosis	28.742322
Mean	0.26613199
Median Absolute Deviation (MAD)	0
Skewness	4.7595361
Sum	5077
Variance	0.96151436
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=14)

Value	Count	Frequency (%)
0	17309	90.7%
2	509	2.7%
3	435	2.3%
1	350	1.8%
4	236	1.2%
5	119	0.6%
6	53	0.3%
7	32	0.2%
8	15	0.1%
9	5	< 0.1%
Other values (4)	14	0.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	17309	90.7%
1	350	1.8%
2	509	2.7%
3	435	2.3%
4	236	1.2%
5	119	0.6%
6	53	0.3%
7	32	0.2%
8	15	0.1%
9	5	< 0.1%

Value	Count	Frequency (%)
13	3	< 0.1%
12	2	< 0.1%
11	5	< 0.1%
10	4	< 0.1%
9	5	< 0.1%
8	15	0.1%
7	32	0.2%
6	53	0.3%
5	119	0.6%
4	236	1.2%

forumng
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	1828
Distinct (%)	9.6%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	319.97903

Minimum	0
Maximum	13154
Zeros	1303
Zeros (%)	6.8%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	34
median	132
Q3	352
95-th percentile	1168
Maximum	13154
Range	13154
Interquartile range (IQR)	318

Descriptive statistics

Standard deviation	636.72645
Coefficient of variation (CV)	1.9899005
Kurtosis	70.550556
Mean	319.97903
Median Absolute Deviation (MAD)	119
Skewness	6.7084677
Sum	6104240
Variance	405420.57
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	1303	6.8%
1	189	1.0%
3	185	1.0%
2	183	1.0%
4	167	0.9%
5	150	0.8%
6	149	0.8%
7	132	0.7%
8	132	0.7%
9	129	0.7%
Other values (1818)	16358	85.7%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	1303	6.8%
1	189	1.0%
2	183	1.0%
3	185	1.0%
4	167	0.9%
5	150	0.8%
6	149	0.8%
7	132	0.7%
8	132	0.7%
9	129	0.7%

Value	Count	Frequency (%)
13154	1	< 0.1%
11465	1	< 0.1%
11344	1	< 0.1%
10483	1	< 0.1%
9919	1	< 0.1%
9666	1	< 0.1%
9560	1	< 0.1%
9320	1	< 0.1%
9292	1	< 0.1%
9279	1	< 0.1%

glossary
Real number (ℝ)

SKEWED ZEROS

Distinct	175
Distinct (%)	0.9%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	3.5053205

Minimum	0
Maximum	1364
Zeros	14467
Zeros (%)	75.8%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	11
Maximum	1364
Range	1364
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	31.645296
Coefficient of variation (CV)	9.0277895
Kurtosis	900.7435
Mean	3.5053205
Median Absolute Deviation (MAD)	0
Skewness	26.798079
Sum	66871
Variance	1001.4248
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	14467	75.8%
1	1308	6.9%
2	673	3.5%
3	414	2.2%
4	301	1.6%
5	250	1.3%
6	185	1.0%
7	158	0.8%
8	117	0.6%
12	103	0.5%
Other values (165)	1101	5.8%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	14467	75.8%
1	1308	6.9%
2	673	3.5%
3	414	2.2%
4	301	1.6%
5	250	1.3%
6	185	1.0%
7	158	0.8%
8	117	0.6%
9	96	0.5%

Value	Count	Frequency (%)
1364	1	< 0.1%
1316	1	< 0.1%
1213	1	< 0.1%
1169	1	< 0.1%
1157	1	< 0.1%
1127	1	< 0.1%
1003	1	< 0.1%
916	1	< 0.1%
874	1	< 0.1%
699	1	< 0.1%

homepage
Real number (ℝ)

Distinct	1412
Distinct (%)	7.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	294.47114

Minimum	0
Maximum	8543
Zeros	15
Zeros (%)	0.1%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	17
Q1	88
median	194
Q3	379
95-th percentile	882
Maximum	8543
Range	8543
Interquartile range (IQR)	291

Descriptive statistics

Standard deviation	362.40525
Coefficient of variation (CV)	1.2306987
Kurtosis	69.138336
Mean	294.47114
Median Absolute Deviation (MAD)	128
Skewness	5.6249773
Sum	5617626
Variance	131337.56
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
6	74	0.4%
2	72	0.4%
1	72	0.4%
59	72	0.4%
4	68	0.4%
100	67	0.4%
3	67	0.4%
29	67	0.4%
44	65	0.3%
49	65	0.3%
Other values (1402)	18388	96.4%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	15	0.1%
1	72	0.4%
2	72	0.4%
3	67	0.4%
4	68	0.4%
5	58	0.3%
6	74	0.4%
7	46	0.2%
8	53	0.3%
9	48	0.3%

Value	Count	Frequency (%)
8543	2	< 0.1%
7277	1	< 0.1%
6430	2	< 0.1%
5548	1	< 0.1%
5114	1	< 0.1%
4752	1	< 0.1%
4664	1	< 0.1%
4622	1	< 0.1%
4596	1	< 0.1%
4507	1	< 0.1%

htmlactivity
Real number (ℝ)

Distinct	26
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	0.30701892

Minimum	0
Maximum	33
Zeros	17850
Zeros (%)	93.6%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	2
Maximum	33
Range	33
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	1.4402693
Coefficient of variation (CV)	4.6911418
Kurtosis	68.332114
Mean	0.30701892
Median Absolute Deviation (MAD)	0
Skewness	6.8434656
Sum	5857
Variance	2.0743757
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=26)

Value	Count	Frequency (%)
0	17850	93.6%
4	189	1.0%
3	185	1.0%
2	184	1.0%
5	155	0.8%
1	122	0.6%
6	122	0.6%
7	94	0.5%
8	53	0.3%
9	40	0.2%
Other values (16)	83	0.4%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	17850	93.6%
1	122	0.6%
2	184	1.0%
3	185	1.0%
4	189	1.0%
5	155	0.8%
6	122	0.6%
7	94	0.5%
8	53	0.3%
9	40	0.2%

Value	Count	Frequency (%)
33	1	< 0.1%
27	1	< 0.1%
25	1	< 0.1%
24	1	< 0.1%
23	2	< 0.1%
22	1	< 0.1%
20	1	< 0.1%
18	1	< 0.1%
17	2	< 0.1%
16	3	< 0.1%

oucollaborate
Real number (ℝ)

Distinct	136
Distinct (%)	0.7%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	4.7810977

Minimum	0
Maximum	316
Zeros	10954
Zeros (%)	57.4%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	4
95-th percentile	25
Maximum	316
Range	316
Interquartile range (IQR)	4

Descriptive statistics

Standard deviation	12.927816
Coefficient of variation (CV)	2.7039431
Kurtosis	79.923818
Mean	4.7810977
Median Absolute Deviation (MAD)	0
Skewness	6.9021149
Sum	91209
Variance	167.12843
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	10954	57.4%
1	1505	7.9%
2	1066	5.6%
3	654	3.4%
4	585	3.1%
5	450	2.4%
6	328	1.7%
7	310	1.6%
8	269	1.4%
9	250	1.3%
Other values (126)	2706	14.2%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	10954	57.4%
1	1505	7.9%
2	1066	5.6%
3	654	3.4%
4	585	3.1%
5	450	2.4%
6	328	1.7%
7	310	1.6%
8	269	1.4%
9	250	1.3%

Value	Count	Frequency (%)
316	1	< 0.1%
248	2	< 0.1%
227	1	< 0.1%
224	1	< 0.1%
217	1	< 0.1%
193	1	< 0.1%
186	2	< 0.1%
172	1	< 0.1%
171	1	< 0.1%
162	3	< 0.1%

oucontent
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	2468
Distinct (%)	12.9%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	485.14462

Minimum	0
Maximum	9928
Zeros	1036
Zeros (%)	5.4%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	36
median	196
Q3	649
95-th percentile	1906.4
Maximum	9928
Range	9928
Interquartile range (IQR)	613

Descriptive statistics

Standard deviation	724.59829
Coefficient of variation (CV)	1.4935717
Kurtosis	17.182356
Mean	485.14462
Median Absolute Deviation (MAD)	187
Skewness	3.1767541
Sum	9255104
Variance	525042.68
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	1036	5.4%
1	602	3.2%
2	303	1.6%
3	157	0.8%
4	152	0.8%
5	122	0.6%
7	117	0.6%
6	113	0.6%
10	110	0.6%
12	101	0.5%
Other values (2458)	16264	85.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	1036	5.4%
1	602	3.2%
2	303	1.6%
3	157	0.8%
4	152	0.8%
5	122	0.6%
6	113	0.6%
7	117	0.6%
8	82	0.4%
9	97	0.5%

Value	Count	Frequency (%)
9928	2	< 0.1%
8672	1	< 0.1%
8328	1	< 0.1%
8314	1	< 0.1%
7814	2	< 0.1%
7780	2	< 0.1%
7264	2	< 0.1%
7063	1	< 0.1%
6860	1	< 0.1%
6700	2	< 0.1%

ouelluminate
Real number (ℝ)

Distinct	120
Distinct (%)	0.6%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	1.7620171

Minimum	0
Maximum	317
Zeros	17047
Zeros (%)	89.4%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	9
Maximum	317
Range	317
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	9.1477285
Coefficient of variation (CV)	5.191623
Kurtosis	156.14313
Mean	1.7620171
Median Absolute Deviation (MAD)	0
Skewness	9.8142798
Sum	33614
Variance	83.680937
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	17047	89.4%
1	305	1.6%
2	202	1.1%
3	157	0.8%
4	96	0.5%
5	87	0.5%
6	76	0.4%
7	67	0.4%
9	64	0.3%
8	60	0.3%
Other values (110)	916	4.8%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	17047	89.4%
1	305	1.6%
2	202	1.1%
3	157	0.8%
4	96	0.5%
5	87	0.5%
6	76	0.4%
7	67	0.4%
8	60	0.3%
9	64	0.3%

Value	Count	Frequency (%)
317	1	< 0.1%
176	1	< 0.1%
171	1	< 0.1%
166	2	< 0.1%
147	1	< 0.1%
142	1	< 0.1%
134	1	< 0.1%
131	1	< 0.1%
130	1	< 0.1%
129	1	< 0.1%

ouwiki
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	560
Distinct (%)	2.9%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	40.021754

Minimum	0
Maximum	2117
Zeros	10554
Zeros (%)	55.3%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	34
95-th percentile	212
Maximum	2117
Range	2117
Interquartile range (IQR)	34

Descriptive statistics

Standard deviation	96.031117
Coefficient of variation (CV)	2.399473
Kurtosis	43.781192
Mean	40.021754
Median Absolute Deviation (MAD)	0
Skewness	5.0538968
Sum	763495
Variance	9221.9755
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	10554	55.3%
1	377	2.0%
2	252	1.3%
3	200	1.0%
4	167	0.9%
6	155	0.8%
5	152	0.8%
9	126	0.7%
11	125	0.7%
8	119	0.6%
Other values (550)	6850	35.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	10554	55.3%
1	377	2.0%
2	252	1.3%
3	200	1.0%
4	167	0.9%
5	152	0.8%
6	155	0.8%
7	115	0.6%
8	119	0.6%
9	126	0.7%

Value	Count	Frequency (%)
2117	1	< 0.1%
1637	2	< 0.1%
1217	1	< 0.1%
1191	1	< 0.1%
1111	1	< 0.1%
1102	1	< 0.1%
1076	1	< 0.1%
1045	1	< 0.1%
1035	1	< 0.1%
1028	1	< 0.1%

page
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	64
Distinct (%)	0.3%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	2.5776065

Minimum	0
Maximum	334
Zeros	12578
Zeros (%)	65.9%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	2
95-th percentile	14
Maximum	334
Range	334
Interquartile range (IQR)	2

Descriptive statistics

Standard deviation	6.2540587
Coefficient of variation (CV)	2.4263046
Kurtosis	427.51384
Mean	2.5776065
Median Absolute Deviation (MAD)	0
Skewness	10.758588
Sum	49173
Variance	39.11325
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	12578	65.9%
1	1094	5.7%
2	783	4.1%
3	645	3.4%
4	524	2.7%
5	452	2.4%
6	380	2.0%
7	317	1.7%
9	293	1.5%
8	286	1.5%
Other values (54)	1725	9.0%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	12578	65.9%
1	1094	5.7%
2	783	4.1%
3	645	3.4%
4	524	2.7%
5	452	2.4%
6	380	2.0%
7	317	1.7%
8	286	1.5%
9	293	1.5%

Value	Count	Frequency (%)
334	1	< 0.1%
74	1	< 0.1%
69	1	< 0.1%
68	1	< 0.1%
65	1	< 0.1%
64	3	< 0.1%
62	1	< 0.1%
61	1	< 0.1%
59	1	< 0.1%
58	2	< 0.1%

questionnaire
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	62
Distinct (%)	0.3%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	2.5040101

Minimum	0
Maximum	65
Zeros	15593
Zeros (%)	81.7%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	17
Maximum	65
Range	65
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	7.3060257
Coefficient of variation (CV)	2.9177302
Kurtosis	16.007268
Mean	2.5040101
Median Absolute Deviation (MAD)	0
Skewness	3.8177876
Sum	47769
Variance	53.378011
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	15593	81.7%
3	485	2.5%
9	261	1.4%
6	210	1.1%
4	191	1.0%
10	176	0.9%
12	172	0.9%
1	148	0.8%
7	137	0.7%
11	126	0.7%
Other values (52)	1578	8.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	15593	81.7%
1	148	0.8%
2	52	0.3%
3	485	2.5%
4	191	1.0%
5	81	0.4%
6	210	1.1%
7	137	0.7%
8	93	0.5%
9	261	1.4%

Value	Count	Frequency (%)
65	1	< 0.1%
63	1	< 0.1%
62	1	< 0.1%
59	1	< 0.1%
58	2	< 0.1%
57	1	< 0.1%
55	2	< 0.1%
54	3	< 0.1%
53	3	< 0.1%
52	2	< 0.1%

quiz
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	1767
Distinct (%)	9.3%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	317.31032

Minimum	0
Maximum	13032
Zeros	4833
Zeros (%)	25.3%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	95
Q3	485
95-th percentile	1218
Maximum	13032
Range	13032
Interquartile range (IQR)	485

Descriptive statistics

Standard deviation	551.26626
Coefficient of variation (CV)	1.7373096
Kurtosis	50.989509
Mean	317.31032
Median Absolute Deviation (MAD)	95
Skewness	4.9426626
Sum	6053329
Variance	303894.49
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	4833	25.3%
1	295	1.5%
2	136	0.7%
74	103	0.5%
80	96	0.5%
75	95	0.5%
78	95	0.5%
70	94	0.5%
73	92	0.5%
79	91	0.5%
Other values (1757)	13147	68.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	4833	25.3%
1	295	1.5%
2	136	0.7%
3	84	0.4%
4	69	0.4%
5	35	0.2%
6	34	0.2%
7	28	0.1%
8	20	0.1%
9	22	0.1%

Value	Count	Frequency (%)
13032	1	< 0.1%
10829	1	< 0.1%
8877	1	< 0.1%
8323	2	< 0.1%
7693	1	< 0.1%
7164	1	< 0.1%
6883	2	< 0.1%
6569	1	< 0.1%
6523	2	< 0.1%
6129	1	< 0.1%

repeatactivity
Categorical

Distinct	3
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	149.2 KiB

0	19075
2	1
3	1

Length

Max length	1
Median length	1
Mean length	1
Min length	1

Characters and Unicode

Total characters	19077
Distinct characters	3
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	2 ?
Unique (%)	< 0.1%

Sample

1st row	0
2nd row	0
3rd row	0
4th row	0
5th row	0

Common Values

Value	Count	Frequency (%)
0	19075	> 99.9%
2	1	< 0.1%
3	1	< 0.1%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
0	19075	> 99.9%
2	1	< 0.1%
3	1	< 0.1%

Most occurring characters

Value	Count	Frequency (%)
0	19075	> 99.9%
2	1	< 0.1%
3	1	< 0.1%

Most occurring categories

Value	Count	Frequency (%)
Decimal Number	19077	100.0%

Most frequent character per category

Decimal Number

Value	Count	Frequency (%)
0	19075	> 99.9%
2	1	< 0.1%
3	1	< 0.1%

Most occurring scripts

Value	Count	Frequency (%)
Common	19077	100.0%

Most frequent character per script

Common

Value	Count	Frequency (%)
0	19075	> 99.9%
2	1	< 0.1%
3	1	< 0.1%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	19077	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
0	19075	> 99.9%
2	1	< 0.1%
3	1	< 0.1%

resource
Real number (ℝ)

HIGH CORRELATION SKEWED ZEROS

Distinct	398
Distinct (%)	2.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	49.663784

Minimum	0
Maximum	5147
Zeros	510
Zeros (%)	2.7%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	2
Q1	14
median	31
Q3	60
95-th percentile	150
Maximum	5147
Range	5147
Interquartile range (IQR)	46

Descriptive statistics

Standard deviation	96.579696
Coefficient of variation (CV)	1.9446705
Kurtosis	1255.9493
Mean	49.663784
Median Absolute Deviation (MAD)	21
Skewness	27.941588
Sum	947436
Variance	9327.6377
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	510	2.7%
9	355	1.9%
5	339	1.8%
6	338	1.8%
3	336	1.8%
14	336	1.8%
12	335	1.8%
8	331	1.7%
4	327	1.7%
15	321	1.7%
Other values (388)	15549	81.5%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	510	2.7%
1	316	1.7%
2	297	1.6%
3	336	1.8%
4	327	1.7%
5	339	1.8%
6	338	1.8%
7	317	1.7%
8	331	1.7%
9	355	1.9%

Value	Count	Frequency (%)
5147	1	< 0.1%
4635	2	< 0.1%
4562	1	< 0.1%
2808	1	< 0.1%
2281	1	< 0.1%
1850	1	< 0.1%
1825	1	< 0.1%
1472	1	< 0.1%
874	1	< 0.1%
827	1	< 0.1%

sharedsubpage
Categorical

Distinct	5
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	149.2 KiB

0	18981
1	77
2	13
3	5
4	1

Length

Max length	1
Median length	1
Mean length	1
Min length	1

Characters and Unicode

Total characters	19077
Distinct characters	5
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	1 ?
Unique (%)	< 0.1%

Sample

1st row	0
2nd row	0
3rd row	0
4th row	0
5th row	0

Common Values

Value	Count	Frequency (%)
0	18981	99.5%
1	77	0.4%
2	13	0.1%
3	5	< 0.1%
4	1	< 0.1%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
0	18981	99.5%
1	77	0.4%
2	13	0.1%
3	5	< 0.1%
4	1	< 0.1%

Most occurring characters

Value	Count	Frequency (%)
0	18981	99.5%
1	77	0.4%
2	13	0.1%
3	5	< 0.1%
4	1	< 0.1%

Most occurring categories

Value	Count	Frequency (%)
Decimal Number	19077	100.0%

Most frequent character per category

Decimal Number

Value	Count	Frequency (%)
0	18981	99.5%
1	77	0.4%
2	13	0.1%
3	5	< 0.1%
4	1	< 0.1%

Most occurring scripts

Value	Count	Frequency (%)
Common	19077	100.0%

Most frequent character per script

Common

Value	Count	Frequency (%)
0	18981	99.5%
1	77	0.4%
2	13	0.1%
3	5	< 0.1%
4	1	< 0.1%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	19077	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
0	18981	99.5%
1	77	0.4%
2	13	0.1%
3	5	< 0.1%
4	1	< 0.1%

subpage
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	918
Distinct (%)	4.8%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	147.86932

Minimum	0
Maximum	4346
Zeros	294
Zeros (%)	1.5%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	4
Q1	25
median	76
Q3	212
95-th percentile	500
Maximum	4346
Range	4346
Interquartile range (IQR)	187

Descriptive statistics

Standard deviation	187.65634
Coefficient of variation (CV)	1.2690688
Kurtosis	26.111454
Mean	147.86932
Median Absolute Deviation (MAD)	63
Skewness	3.2353926
Sum	2820903
Variance	35214.901
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	294	1.5%
11	226	1.2%
1	212	1.1%
18	200	1.0%
6	194	1.0%
4	193	1.0%
5	193	1.0%
15	192	1.0%
9	190	1.0%
2	190	1.0%
Other values (908)	16993	89.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	294	1.5%
1	212	1.1%
2	190	1.0%
3	176	0.9%
4	193	1.0%
5	193	1.0%
6	194	1.0%
7	171	0.9%
8	189	1.0%
9	190	1.0%

Value	Count	Frequency (%)
4346	1	< 0.1%
2688	1	< 0.1%
2453	2	< 0.1%
2303	2	< 0.1%
1862	1	< 0.1%
1846	1	< 0.1%
1619	1	< 0.1%
1614	1	< 0.1%
1576	1	< 0.1%
1570	1	< 0.1%

url
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	267
Distinct (%)	1.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	24.287886

Minimum	0
Maximum	2134
Zeros	2836
Zeros (%)	14.9%
Negative	0
Negative (%)	0.0%
Memory size	149.2 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	3
median	12
Q3	32
95-th percentile	84
Maximum	2134
Range	2134
Interquartile range (IQR)	29

Descriptive statistics

Standard deviation	40.288575
Coefficient of variation (CV)	1.658793
Kurtosis	447.42164
Mean	24.287886
Median Absolute Deviation (MAD)	11
Skewness	12.245321
Sum	463340
Variance	1623.1693
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	2836	14.9%
1	934	4.9%
2	769	4.0%
3	754	4.0%
4	625	3.3%
5	569	3.0%
6	524	2.7%
8	509	2.7%
7	500	2.6%
9	404	2.1%
Other values (257)	10653	55.8%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	2836	14.9%
1	934	4.9%
2	769	4.0%
3	754	4.0%
4	625	3.3%
5	569	3.0%
6	524	2.7%
7	500	2.6%
8	509	2.7%
9	404	2.1%

Value	Count	Frequency (%)
2134	1	< 0.1%
830	1	< 0.1%
820	1	< 0.1%
729	1	< 0.1%
646	2	< 0.1%
635	1	< 0.1%
633	1	< 0.1%
612	2	< 0.1%
592	1	< 0.1%
573	1	< 0.1%

Auto

Heatmap
Table

	ID_Student	dataplus	dualpane	externalquiz	folder	forumng	glossary	homepage	htmlactivity	oucollaborate	oucontent	ouelluminate	ouwiki	page	questionnaire	quiz	resource	subpage	url	course_year_month	pass	repeatactivity	sharedsubpage
ID_Student	1.000	-0.014	-0.054	-0.051	-0.021	-0.058	0.043	-0.009	0.138	0.120	0.083	-0.181	-0.037	-0.037	0.030	0.052	0.017	-0.050	-0.075	0.141	0.051	0.000	0.000
dataplus	-0.014	1.000	0.480	-0.168	0.366	0.279	-0.060	0.371	0.260	0.092	0.484	0.140	0.229	0.472	0.593	0.341	0.154	0.410	0.323	0.121	0.139	0.000	0.000
dualpane	-0.054	0.480	1.000	-0.199	0.313	0.266	-0.140	0.357	0.091	0.086	0.506	0.176	0.423	0.459	0.514	0.447	0.131	0.327	0.367	0.150	0.090	0.000	0.000
externalquiz	-0.051	-0.168	-0.199	1.000	-0.150	0.175	0.201	0.185	-0.122	0.288	-0.082	0.168	0.318	-0.143	-0.221	-0.430	0.335	0.334	0.257	0.153	0.057	0.000	0.000
folder	-0.021	0.366	0.313	-0.150	1.000	0.180	-0.080	0.245	-0.075	0.158	0.354	-0.094	0.201	0.503	0.421	0.408	0.119	0.343	0.175	0.230	0.140	0.022	0.000
forumng	-0.058	0.279	0.266	0.175	0.180	1.000	0.191	0.799	0.102	0.364	0.398	0.231	0.436	0.312	0.266	0.303	0.508	0.625	0.655	0.040	0.113	0.019	0.083
glossary	0.043	-0.060	-0.140	0.201	-0.080	0.191	1.000	0.173	-0.074	0.120	-0.003	0.039	-0.133	-0.175	-0.016	-0.129	0.255	0.105	0.030	0.032	0.030	0.000	0.000
homepage	-0.009	0.371	0.357	0.185	0.245	0.799	0.173	1.000	0.141	0.431	0.654	0.211	0.537	0.419	0.381	0.478	0.699	0.784	0.743	0.046	0.133	0.064	0.019
htmlactivity	0.138	0.260	0.091	-0.122	-0.075	0.102	-0.074	0.141	1.000	0.136	0.252	-0.084	0.136	0.258	0.311	0.260	0.046	0.240	0.100	0.241	0.053	0.000	0.000
oucollaborate	0.120	0.092	0.086	0.288	0.158	0.364	0.120	0.431	0.136	1.000	0.349	-0.238	0.327	0.121	0.180	0.141	0.384	0.403	0.340	0.120	0.103	0.000	0.000
oucontent	0.083	0.484	0.506	-0.082	0.354	0.398	-0.003	0.654	0.252	0.349	1.000	0.089	0.545	0.534	0.575	0.561	0.392	0.570	0.433	0.161	0.224	0.000	0.000
ouelluminate	-0.181	0.140	0.176	0.168	-0.094	0.231	0.039	0.211	-0.084	-0.238	0.089	1.000	0.218	0.290	0.150	0.046	0.178	0.279	0.271	0.148	0.040	0.000	0.000
ouwiki	-0.037	0.229	0.423	0.318	0.201	0.436	-0.133	0.537	0.136	0.327	0.545	0.218	1.000	0.424	0.265	0.273	0.346	0.540	0.599	0.167	0.120	0.000	0.000
page	-0.037	0.472	0.459	-0.143	0.503	0.312	-0.175	0.419	0.258	0.121	0.534	0.290	0.424	1.000	0.570	0.597	0.272	0.596	0.369	0.068	0.024	0.079	0.000
questionnaire	0.030	0.593	0.514	-0.221	0.421	0.266	-0.016	0.381	0.311	0.180	0.575	0.150	0.265	0.570	1.000	0.491	0.203	0.422	0.229	0.181	0.172	0.000	0.000
quiz	0.052	0.341	0.447	-0.430	0.408	0.303	-0.129	0.478	0.260	0.141	0.561	0.046	0.273	0.597	0.491	1.000	0.308	0.420	0.284	0.092	0.101	0.062	0.000
resource	0.017	0.154	0.131	0.335	0.119	0.508	0.255	0.699	0.046	0.384	0.392	0.178	0.346	0.272	0.203	0.308	1.000	0.726	0.513	0.014	0.016	0.000	0.000
subpage	-0.050	0.410	0.327	0.334	0.343	0.625	0.105	0.784	0.240	0.403	0.570	0.279	0.540	0.596	0.422	0.420	0.726	1.000	0.693	0.104	0.142	0.054	0.000
url	-0.075	0.323	0.367	0.257	0.175	0.655	0.030	0.743	0.100	0.340	0.433	0.271	0.599	0.369	0.229	0.284	0.513	0.693	1.000	0.048	0.039	0.000	0.000
course_year_month	0.141	0.121	0.150	0.153	0.230	0.040	0.032	0.046	0.241	0.120	0.161	0.148	0.167	0.068	0.181	0.092	0.014	0.104	0.048	1.000	0.115	0.000	0.078
pass	0.051	0.139	0.090	0.057	0.140	0.113	0.030	0.133	0.053	0.103	0.224	0.040	0.120	0.024	0.172	0.101	0.016	0.142	0.039	0.115	1.000	0.004	0.013
repeatactivity	0.000	0.000	0.000	0.000	0.022	0.019	0.000	0.064	0.000	0.000	0.000	0.000	0.000	0.079	0.000	0.062	0.000	0.054	0.000	0.000	0.004	1.000	0.000
sharedsubpage	0.000	0.000	0.000	0.000	0.000	0.083	0.000	0.019	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.078	0.013	0.000	1.000

Count
Matrix

A simple visualization of nullity by column.

Nullity matrix is a data-dense display which lets you quickly visually pick out patterns in data completion.

First rows
Last rows

	ID_Student	course_year_month	pass	dualpane	externalquiz	forumng	glossary	homepage	htmlactivity	oucollaborate	oucontent	ouelluminate	ouwiki	page	questionnaire	quiz	resource	subpage	url
0	560374	GGG 2013_October	True	0	0	0	0	51	0	0	50	0	0	0	0	65	5	8	0
1	519684	EEE 2013_October	True	2	0	525	0	706	0	0	1788	0	193	0	0	371	77	215	60
2	570529	GGG 2013_October	True	0	0	45	2	275	0	0	628	0	0	0	0	158	77	15	0
3	643653	FFF 2014_October	True	0	0	411	0	470	3	9	964	0	14	5	19	1001	20	254	37
4	678680	BBB 2014_October	True	0	0	109	4	235	0	26	478	0	0	0	0	118	84	26	0
5	681200	EEE 2014_October	True	0	0	1223	0	820	0	0	737	0	462	1	0	146	12	123	79
6	358075	CCC 2014_October	True	0	8	599	0	491	0	3	99	10	11	0	0	248	41	94	44
7	2280038	BBB 2013_February	False	0	0	52	0	13	0	0	0	0	0	0	0	0	11	0	2
8	469113	EEE 2013_October	True	3	0	275	0	267	0	0	587	0	259	0	0	257	13	35	23
9	84605	DDD 2014_February	True	0	12	383	0	302	0	2	242	0	33	0	0	0	43	149	28

	ID_Student	course_year_month	pass	dataplus	dualpane	folder	forumng	glossary	homepage	oucollaborate	oucontent	ouwiki	page	quiz	resource	sharedsubpage	subpage	url
19067	546141	FFF 2013_February	False	0	0	0	0	0	4	0	2	0	0	133	0	0	8	1
19068	604741	FFF 2013_October	True	0	3	1	181	0	211	6	535	6	7	308	12	0	128	3
19069	968578	AAA 2013_October	True	3	0	0	99	0	156	1	569	0	0	0	6	0	33	3
19070	471476	DDD 2014_February	False	0	0	0	113	2	200	1	65	29	0	0	74	0	314	26
19071	411895	BBB 2014_February	False	0	0	0	1	0	6	0	0	0	0	13	0	0	4	0
19072	575473	EEE 2014_February	True	0	0	0	21	0	151	2	394	100	0	237	8	0	17	33
19073	545340	BBB 2013_February	False	0	0	0	18	0	47	0	1	0	0	47	3	0	5	3
19074	634638	FFF 2014_February	False	0	0	0	11	0	21	1	25	0	3	1	1	0	27	0
19075	629619	BBB 2014_February	True	0	0	0	212	0	161	0	39	0	0	80	29	1	35	4
19076	677049	EEE 2014_October	False	0	0	0	2	0	31	0	72	0	0	2	2	0	0	3

Overview

Variables

Common Values

Length

Most occurring characters

Most occurring categories

Most frequent character per category

Lowercase Letter

Uppercase Letter

Decimal Number

Connector Punctuation

Space Separator

Most occurring scripts

Most frequent character per script

Latin

Common

Most occurring blocks

Most frequent character per block

ASCII

Common Values

Length

Common Values (Plot)

Most occurring characters

Most occurring categories

Most frequent character per category

Decimal Number

Most occurring scripts

Most frequent character per script

Common

Most occurring blocks

Most frequent character per block

ASCII

Common Values

Length

Common Values (Plot)

Most occurring characters

Most occurring categories

Most frequent character per category

Decimal Number

Most occurring scripts

Most frequent character per script

Common

Most occurring blocks

Most frequent character per block

ASCII

Interactions

Correlations

Missing values

Sample